Cheap flights from Washington, D.C. to Knock from €672

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Knock departing on 15/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Washington, D.C. to Knock

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
17:11 - 12:25
IAD
-
NOC
15h 14m
2 stops
Multiple Airlines Logo
13:05 - 07:50
NOC
-
IAD
47h 45m
2 stops
€672Multiple Airlines
Sun, 15 Mar - Tue, 31 Mar
British Airways Logo
19:20 - 12:25
IAD
-
NOC
13h 05m
1 stop
British Airways Logo
13:05 - 20:10
NOC
-
IAD
12h 05m
1 stop
€739British Airways
Sun, 15 Mar - Tue, 31 Mar
Aer Lingus Logo
21:00 - 12:35
IAD
-
NOC
34h 35m
2 stops
Aer Lingus Logo
13:05 - 19:15
NOC
-
IAD
35h 10m
2 stops
€1,073Aer Lingus
Sun, 21 Jun - Sun, 28 Jun
Aer Lingus Logo
21:00 - 12:35
IAD
-
NOC
34h 35m
2 stops
Aer Lingus Logo
13:05 - 19:15
NOC
-
IAD
35h 10m
2 stops
€1,138Aer Lingus
Sun, 21 Jun - Sun, 28 Jun
Aer Lingus Logo
17:40 - 12:35
IAD
-
NOC
13h 55m
1 stop
Aer Lingus Logo
13:05 - 19:15
NOC
-
IAD
35h 10m
2 stops
€1,180Aer Lingus
Sun, 21 Jun - Sun, 28 Jun
Multiple Airlines Logo
23:55 - 12:25
IAD
-
NOC
32h 30m
3 stops
Multiple Airlines Logo
17:35 - 20:35
NOC
-
IAD
32h 00m
2 stops
€1,190Multiple Airlines
Sun, 15 Mar - Tue, 31 Mar
Aer Lingus Logo
17:40 - 12:35
IAD
-
NOC
13h 55m
1 stop
Aer Lingus Logo
13:05 - 19:15
NOC
-
IAD
35h 10m
2 stops
€1,262Aer Lingus
Sun, 21 Jun - Sun, 28 Jun
Aer Lingus Logo
17:40 - 12:35
IAD
-
NOC
13h 55m
1 stop
Aer Lingus Logo
13:05 - 15:50
NOC
-
IAD
31h 45m
1 stop
€1,303Aer Lingus
Sun, 21 Jun - Sun, 28 Jun
Multiple Airlines Logo
23:55 - 12:25
IAD
-
NOC
32h 30m
3 stops
Multiple Airlines Logo
17:35 - 19:40
NOC
-
IAD
31h 05m
3 stops
€1,367Multiple Airlines
Sun, 15 Mar - Tue, 31 Mar
Multiple Airlines Logo
17:40 - 12:35
IAD
-
NOC
13h 55m
1 stop
Multiple Airlines Logo
13:05 - 15:50
NOC
-
IAD
31h 45m
1 stop
€1,438Multiple Airlines
Sun, 21 Jun - Sun, 28 Jun

Aer Lingus flights from Washington, D.C. to Knock

Our best Aer Lingus deals on Washington, D.C. to Knock flight tickets
Aer Lingus
1 Mar
IAD21:00Washington, D.C. Dulles Intl
34h 25m
2 stops
NOC12:25Knock Intl
8 Mar
NOC13:00Knock Intl
35h 30m
2 stops
IAD20:30Washington, D.C. Dulles Intl
€849
Aer Lingus
21 Jun
IAD21:00Washington, D.C. Dulles Intl
34h 35m
2 stops
NOC12:35Knock Intl
28 Jun
NOC13:05Knock Intl
35h 10m
2 stops
IAD19:15Washington, D.C. Dulles Intl
€1,073
Aer Lingus
1 Mar
IAD17:05Washington, D.C. Dulles Intl
14h 20m
2 stops
NOC12:25Knock Intl
8 Mar
NOC13:00Knock Intl
31h 35m
1 stop
IAD16:35Washington, D.C. Dulles Intl
€1,118

British Airways flights from Washington, D.C. to Knock

Our best British Airways deals on Washington, D.C. to Knock flight tickets
British Airways
15 Mar
IAD19:20Washington, D.C. Dulles Intl
13h 05m
1 stop
NOC12:25Knock Intl
31 Mar
NOC13:05Knock Intl
12h 05m
1 stop
IAD20:10Washington, D.C. Dulles Intl
€739
British Airways
9 Mar
IAD19:20Washington, D.C. Dulles Intl
13h 05m
1 stop
NOC12:25Knock Intl
13 Mar
NOC13:00Knock Intl
11h 55m
1 stop
IAD20:55Washington, D.C. Dulles Intl
€904
British Airways
9 Mar
IAD16:46Washington, D.C. Dulles Intl
39h 39m
2 stops
NOC12:25Knock Intl
13 Mar
NOC13:00Knock Intl
11h 55m
1 stop
IAD20:55Washington, D.C. Dulles Intl
€907

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. to Knock that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 1 March 2026.
Use the filters below to find and compare flights from Washington, D.C. to Knock that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 15/3

17:11-12:25

2 stops15h 14m

Knock Intl

Tue 31/3

13:05-07:50

2 stops47h 45m

€672

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 15/3

19:20-12:25

1 stop13h 05m

Knock Intl

Tue 31/3

13:05-20:10

1 stop12h 05m

€739

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 21/6

21:00-12:35

2 stops34h 35m

Knock Intl

Sun 28/6

13:05-19:15

2 stops35h 10m

€1,073

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 21/6

21:00-12:35

2 stops34h 35m

Knock Intl

Sun 28/6

13:05-19:15

2 stops35h 10m

€1,138

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 21/6

17:40-12:35

1 stop13h 55m

Knock Intl

Sun 28/6

13:05-19:15

2 stops35h 10m

€1,180

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 15/3

23:55-12:25

3 stops32h 30m

Knock Intl

Tue 31/3

17:35-20:35

2 stops32h 00m

€1,190

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 21/6

17:40-12:35

1 stop13h 55m

Knock Intl

Sun 28/6

13:05-19:15

2 stops35h 10m

€1,262

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 21/6

17:40-12:35

1 stop13h 55m

Knock Intl

Sun 28/6

13:05-15:50

1 stop31h 45m

€1,303

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 15/3

23:55-12:25

3 stops32h 30m

Knock Intl

Tue 31/3

17:35-19:40

3 stops31h 05m

€1,367

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 21/6

17:40-12:35

1 stop13h 55m

Knock Intl

Sun 28/6

13:05-15:50

1 stop31h 45m

€1,438

Flights are sorted by cheapest return flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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See travel insights to Knock from

How to get the cheapest flight ticket from Washington, D.C. to Knock

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Washington, D.C. to Knock Intl?

British Airways is the most popular carrier operating from Washington, D.C. to Knock Intl

When to book flights from Washington, D.C. to Knock

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Knock according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Washington, D.C. to Knock (WAS to NOC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Knock

Fastest flight time

13h 05m

Direct flights

None
The fastest flight from Washington, D.C. to Knock takes 13h 05m
There are no direct flights from Washington, D.C. to Knock. There are no popular flight routes from Washington, D.C. to Knock.
  • How far is Washington, D.C. to Knock Intl by plane?

    Washington, D.C. and Knock Intl are 5256.3 km apart from one another. Typically, this will take 13h 05m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. to Knock Intl Airport?

    Prices for flights from Washington, D.C. to Knock Intl Airport are updated daily.

  • How old do you have to be to fly from Washington, D.C. to Knock Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Knock Intl Airport.

  • What documentation or ID do you need to fly to Knock Intl Airport?

    The travel and health documents required for your trip to Knock Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Knock Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Knock?

Book flights to Knock if you plan to visit one of these locations
Sligo
Westport
Carrick-on-Shannon
Belmullet

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Knock?

Finding the right flight to Knock from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Knock quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Knock with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Knock on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Knock?

Once all potential Washington, D.C. to Knock flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. to Knock right now. Can momondo alert me if prices change?

Price alerts on flights to Knock from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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1 adult
Tue 31/3
Tue 7/4